Viscosity Measurement

Measuring viscosity is an effective method of determining the state (properties of matter) or the fluidity of a liquid or a gas. For example, the viscosity of a liquid is an important parameter for designing the piping in a plant, or transporting crude oil or chemical agent through a pipeline. Viscosity measurement has played an important role in, to say nothing of the petrochemical industry, a wide range of industries such as the food, printing (ink), medical drug, or cosmetics industries, as well as in quality control during a production process or in various research and development stages for the improvements of quality and performance. Recently, in the electronic engineering industry it has been recognized that controlling viscosity of photoresist fluid, which is used in the production processes of the print circuit board, the cathode-ray tube and the flat liquid crystal display, is a crucial factor in determining the qualities, performances and yields of finished products. Among those industries, it has also been recognized that controlling optimum viscosity reduces production costs. Furthermore, in the biology and medical fields, viscidity of blood for instance affects hemodynamics and microcirculation, and viscosity is also an important parameter for research of colloidal solutions such as biopolymer solution. (Source A&D Instruments)